If you've run an SEO audit on your website, you've probably seen a number — something like 74 out of 100 — that's supposed to tell you how healthy your site is. But what does that number actually mean, and what do you do with it?
Here's a plain-English breakdown.
What Is a Site Health Score?
A site health score is a single number that summarizes how well your website is set up for search engines. It looks at the technical and on-page factors that affect whether Google can find, read, and rank your pages.
Think of it like a report card for your website. Just like a report card turns a semester of work into a GPA, a site health score turns dozens of individual checks into one number you can track over time.
Higher is better. Most tools score out of 100.
How Is It Calculated?
Different tools calculate health scores differently, but most follow the same logic: start with a perfect score and subtract points for problems found.
The severity of the problem determines how many points you lose. Missing a page title — something Google uses directly in search results — costs more points than a minor issue like a slightly long meta description.
In ClaritySEO, the score works like this:
- Start at 100
- Subtract 5 points for every critical issue
- Subtract 2 points for every warning
- Subtract 0.5 points for every informational note
- Floor at 0
This means a site with 3 critical issues and 4 warnings would score: 100 - 15 - 8 = 77.
What's a Good Site Health Score?
Here's a rough guide:
90-100: Excellent. Your technical foundations are solid. Focus on content and backlinks.
70-89: Good. A few things to clean up, but nothing urgent.
50-69: Needs work. There are real issues holding your rankings back.
Below 50: At risk. Significant problems that are likely costing you traffic right now.
Most small business websites score somewhere between 50 and 75 on their first audit. A score below 50 usually means there are fixable issues — missing titles, broken pages, or no meta descriptions — that are actively hurting rankings.
The Most Common Issues That Drag Scores Down
In order of impact:
Missing page titles: The single most common critical issue. Every page needs a unique, descriptive title. "Home" doesn't count.
Missing meta descriptions: Not a direct ranking factor, but affects whether people click your result in Google. Missing on most pages for most sites.
Missing H1 headings: Every page should have one main heading that tells Google what the page is about. If your page builder uses styled text instead of a proper H1 tag, Google can't read it.
Thin content: Pages with fewer than 300 words don't give Google enough information to understand the topic. Key service and product pages often have this problem.
Slow page speed: Google measures how fast your pages load on mobile. Images that aren't compressed are usually the culprit.
No canonical tag: A technical signal that tells Google which version of a page is the official one. Missing on most sites, and causes confusion when the same content is accessible via multiple URLs.
How to Improve Your Score
Start with critical issues — they have the biggest impact on both your score and your actual rankings. Work through them page by page.
The fastest wins are usually:
- Writing title tags for every page (10 minutes per page)
- Writing meta descriptions for every page (5 minutes per page)
- Making sure every page has an H1 heading (varies by platform)
After you've cleared the critical issues, work through warnings. Informational notes are lowest priority — they're improvements, not emergencies.
How Often Does It Change?
Your score changes whenever you fix an issue and re-run the audit. Most people check monthly, though if you're actively fixing things, weekly makes sense.
The goal isn't a perfect 100. The goal is steady improvement — fixing the issues that matter most for your specific site and watching your rankings move as a result.
The best way to see your score is to run a free audit. It takes about 2 minutes and gives you a prioritized list of everything to fix.